RAPID: Hurricane Irene Storm Surge Sedimentation

快速：飓风艾琳风暴潮沉积

• 批准号: 1157527
• 负责人: Harry Williams
• 金额: $ 1.97万
• 依托单位: University of North Texas
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-10-01 至 2013-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1157527&HistoricalAwards=false
• 关键词: RAPID; Hurricane; Irene; Storm; Surge

This RAPID project will study storm surge sediments deposited by Hurricane Irene in coastal marshes along the east coast of the United States. Questions to be addressed by the study are:1. What is the magnitude and regional distribution of Hurricane Irene storm surge sedimentation?2. How does the orientation of the hurricane track in relation to the coastline affect storm surgesedimentation?3. What is the contribution of Hurricane Irene to long-term sedimentation in coastal marshes?4. Are the storm surge deposits preserved in marshes?Methods to be used include field surveys of the thickness, inland penetration, volume, mass, spatial distribution and structures of Hurricane Irene?s storm surge deposit. In addition, samples will be collected to determine background sedimentation rates against which to compare the hurricane sedimentation and thus its overall role in coastal marsh evolution.This project aims to improve our understanding of how hurricanes contribute to the formation of coastal marshes. The relative importance of such high-magnitude events in the overall evolution of these coastal landscape features remains the subject of debate. The project will also contribute to the field of paleotempestology, which provides assessments of the recurrence interval of hurricane strikes and associated hurricane risk. By providing information on the characteristics of a fresh hurricane deposit, the project will help constrain interpretations of past events that are preserved in the geologic record.

这个RAPID项目将研究飓风艾琳在美国东海岸沿海沼泽中沉积的风暴潮沉积物。本研究需要解决的问题是：1。飓风艾琳风暴潮沉降的震级和区域分布如何？相对于海岸线，飓风路径的方向如何影响风暴潮的沉降？飓风艾琳对沿海沼泽长期沉积的贡献是什么？风暴潮沉积物保存在沼泽中吗？使用的方法包括实地调查飓风艾琳的厚度、内陆渗透、体积、质量、空间分布和结构。S风暴潮沉积。此外，还将收集样本以确定背景沉降率，以便与飓风沉降进行比较，从而确定其在沿海沼泽演变中的总体作用。这个项目旨在提高我们对飓风如何促进沿海沼泽形成的理解。这些高震级事件在这些沿海景观特征的整体演变中的相对重要性仍然是争论的主题。该项目还将为古风暴学领域做出贡献，该领域提供了飓风袭击复发间隔和相关飓风风险的评估。通过提供有关新飓风沉积物特征的信息，该项目将有助于限制对地质记录中保存的过去事件的解释。